A system of associating sheet music notation with keyboard keys of a keyboard instrument and sight reading comprises a rectilinear colored strip adapted to be disposed upon the keyboard instrument. The colored strip includes first and second sets of markings corresponding to first and second octaves of the keyboard. Each of the sets includes wide markings corresponding to white keys of the keyboard and narrow markings corresponding to black keys thereof. Each of the wide markings of the first set is color-coded with a first color and each of the wide markings of the second set is color-coded with a second color different from the second color. The system further comprises a musical notation including musical notes color-coded with the same colors the first and second sets of markings on the colored rectilinear strip.